Improvement in marine governors



M. 'HULINGS.

Marine-Governor.

- No. 211.738. Patented Jan. 28,1879;

N. PETERS. FHOTO LITNOGRAPHIER WASHINGTON. D, C.

FF'IOE.

MARCUS HULINGS, OF OIL CITY, PENNSYLVANIA.

IMPROVEMENT IN MARINE GOVERNORS.

Specification forming part of Letters Patent No. 211,738, dated January28, 1879 application filed July 19, 1878.

To all whom it may concern:

Be it known that I, lVIARGUS HULINGS, of 011 City, in the county ofVenan go and State of ennsylvania, have invented certain new and usefulImprovements in Governors for Steam- Vessels; and I do hereby declarethat the following is a full, clear, and exact description thereof,which will enable others skilled in the art to which they appertain tomake and use the same, reference being had to the accompanyin g drawings, and to letters ofreference marked thereon, which form a part ofthisspecification, in which Figure 1 represents a side elevation of asteamship with a part broken away, exhibiti n g the governor with thethrottle open Fig. 2, the same view with the governor closed. Fig. 3 isa transverse section of the vessel, showing the pipes by which the waterenters and 0pcrates the governor.

My invention is an improved governor to regulate the admission of steamto the engine of a steam-vessel, and thus prevent raein A represents thehull of a steanrvessel, pro vided with a screw, 13, with its shaft I). Ois a cylinder or well in the hull, having a tube, M, which, by means ofits bifurcations m m, allows free access of the water to the well 0. Asthese inlet-pipes are placed in thestern of the vessel, it is evidentthat when the vessel pitches so as to raise the screw from the water, asin Fig. 2, the waterlevel in the well will be lowered; but when thescrew is fully submerged the water will stand at a comparatively highpoint in the well 0.

In the well 0 is a piston, E, properly packed, so as to be water-tight.Its rod F through its guide 0.

0n the upper end of the rod F is the rack K, which engages with atoothed wheel, G, which meshes with a toothed wheel on the pinion H ofthe throttle-valve, so that an upward motion of the piston E will closesaid throttlevalve and a downward motion will open it.

Communication of the motion of the piston E m y be made with thethrottle-valve in any desired way, as it may be necessary in some passesdescribed.

cases to have the governor at some considerable distance from thethrottle.

A spiral spring, N, resting at one end on the bracket 0, and at theother on the piston E, keeps the piston E pressing against the water,and when the water leaves the well 0 said spring N immediately pressesthe piston E down, and thus closes the throttle.

The rack K is kept in gear with the idler G by means of the spring z,and the rack has a handle, Jr, by which it can be moved in or out ofgear by turning the piston and rack at right angles.

The cock L is used when for any reason the water needs to be cut offfrom the governor, or its communication therewith obstructed.

The well 0 can be made with a stufiinglmx, F, as shown in Fig. 3, oropen and projecting above the water-line, as in Figs. 1 and 2.

The spring N can be substituted by any elas tic substance; or the pistonE may be made sufficicntly heavy to promptly fall, by its own weight,when unpressed by the water beneath it.

I do not claim regulating and controlling the supply of steam admittedto the cylinder of a marine engine by the varying pressure of the watercaused by the varying depths to which the vessel may be immersed;neither do I claim the devices employed by mefor the purpose separatedfrom the combination and arrangement in which I use them but I claim Ina governor for a steam-vessel, the combination of the well 0, providedwith a piston having a piston-rod surrounded by a spring, the rack Kupon said piston-rod operating the throttle-valve mechanism Gr H, saidrack being provided with a handle, it, by which it can be turned in andout of gear, and the spring 1', to retain it in either position, allarranged to operate substantially as shown and MARCUS HULIN GS.Witnesses:

R. H. 1\/IITOHELL,

W. R. EDELEN.

